local FuncNode_ActiveNum = class("FuncNode_ActiveNum")
local private = {}

--[[
	初始化
--]]
function FuncNode_ActiveNum:initialize(entity)
    self.LimitChildCount = 3
    self.Type = LuaConst.ConditionFuncType.ActiveNum
end

function FuncNode_ActiveNum:GetEntityListOfLevelItemByID(levelItemID)
    local levelItem = LevelItemManager.GetItemByID(levelItemID)
    if levelItem then
        if levelItem._allEntityDict then
            local list = {}
            for k,entity in pairs(levelItem._allEntityDict) do --pairs safe  因为只是统计数量
                table.insert(list, entity)
            end
            return list
        else
            logging.error(LTAG.ERROR, "HYW : 关卡元素的_allEntityDict为空！！！ 元素ID ：", levelItemID, "  @FuncNode_ActiveNum:GetEntityListOfLevelItemByID ")
        end
    else
        logging.error(LTAG.ERROR, "HYW : 找不到指定的关卡元素!! 元素ID ：", levelItemID, "  @FuncNode_ActiveNum:GetEntityListOfLevelItemByID ")
    end
end

--[[
	执行
--]]
function FuncNode_ActiveNum:Run(conditionDataNode, entity, missile)
    local type = conditionDataNode.FirstNode:Run(entity, missile)
    local disSqr = conditionDataNode.SecondNode:Run(entity, missile)
    local characterIdFilter = nil
    if conditionDataNode.ThirdNode then
        characterIdFilter = conditionDataNode.ThirdNode:Run(entity, missile)
    end
    local dontAddNumIfHasCanNotBeTargetBuff = false
    if type == FP.Const.Zero then --组内成员
        --TODO
    else
        local num = FP.newV1(0)

        --new
        local list2d = nil
        if type == FP.Const.One then --范围友方
            list2d = TargetManager.Get2DFriendList(entity)            
        elseif type == FP.Const.Two or type == FP.Const.Six then --范围敌方
            list2d = TargetManager.Get2DEnemyList(entity)
            dontAddNumIfHasCanNotBeTargetBuff = type == FP.Const.Six
        elseif type == FP.Const.Three then
            list2d = {LogicUpdateManager.EntityList_Sync, LogicUpdateManager.EntityList_Normal}
        elseif type == FP.Const.Four then
            if characterIdFilter then
                local levelItemID = FP.tonumberV1(characterIdFilter)
                local list = self:GetEntityListOfLevelItemByID(levelItemID)
                if list then
                    list2d = {}
                    table.insert(list2d, list)
                end
            else
                logging.error(LTAG.ERROR, "HYW : 没有指定元素ID @FuncNode_ActiveNum:Run   CharacterID ：", entity:GetCharacterID())
            end
            characterIdFilter = nil --这里设characterIdFilter为nil，表示在AddNumber里不再过滤ID了，因为在此处已经过滤完毕了
        elseif type == FP.Const.Five then
            if characterIdFilter then
                local levelItemGroupID = FP.tonumberV1(characterIdFilter)
                local levelItemIDList = LevelItemManager.GetItemIDListByGroup(levelItemGroupID, LuaConst.LevelItemType.Monster)
                if levelItemIDList then
                    list2d = {}
                    for i,levelItemID in ipairs(levelItemIDList) do
                        local list = self:GetEntityListOfLevelItemByID(levelItemID)
                        if list then
                            table.insert(list2d, list)
                        end
                    end
                end
            else
                logging.error(LTAG.ERROR, "HYW : 没有指定元素组ID @FuncNode_ActiveNum:Run   CharacterID ：", entity:GetCharacterID())
            end
            characterIdFilter = nil --这里设characterIdFilter为nil，表示在AddNumber里不再过滤ID了，因为在此处已经过滤完毕了
        end
        if list2d then
            for i,list in ipairs(list2d) do
                private.AddNumber(list,entity,disSqr,num,characterIdFilter,dontAddNumIfHasCanNotBeTargetBuff)
            end
        end

        return num
    end
end

function private.AddNumber(list,entity,disSqr,num,characterIdFilter,dontAddNumIfHasCanNotBeTargetBuff)
    for i,value in ipairs(list) do
        if value._logicInitData.EntityID ~= entity._logicInitData.EntityID
                and private.MatchState(value) 
                and private.MatchDis(entity, value, disSqr) then

            if not dontAddNumIfHasCanNotBeTargetBuff or not value.components.buff:HasBuff(LuaConst.SpecialBuffs.CanNotBeTarget) then
                if characterIdFilter == nil or characterIdFilter == FP.Const.Zero then
                    num:Add(FP.Const.One)
                else
                    if characterIdFilter > FP.Const.Zero then
                        if value._logicInitData.CharacterID == FP.tonumberV1(characterIdFilter) then
                            num:Add(FP.Const.One)
                        end
                    else
                        --单位类型过滤  1=英雄 2=怪物
                        if characterIdFilter == FP.Const.NegOne then
                            if value:IsHero() then
                                num:Add(FP.Const.One)
                            end
                        elseif characterIdFilter == FP.Const.NegTwo then
                            if value:IsMonster() then
                                num:Add(FP.Const.One)
                            end
                        end
                    end
                end
            end
        end
    end
end

function private.MatchState(tempEntity)
    
    if tempEntity._logicInitData.CharacterType == LuaConst.CharacterType.Adjutant then --副将
        return false
    end

    local comp_Base = tempEntity.components.base
    if not comp_Base.IsActive then --未激活
        return false
    end

    if not tempEntity.components.attr:IsAlive() then
        return false
    end

    return true
end

function private.MatchDis(entity, tempEntity, disSqr)
    if disSqr == FP.Const.Zero then
        return true
    else
        return not FP.V2.IsDistanceSqrGreater(entity.components.move.LogicPos, tempEntity.components.move.LogicPos, disSqr)
    end
end

return FuncNode_ActiveNum